# Washington — PDMP Mandatory Prescriber Check Requirements by State

For Washington, mandate status is mandatory; drug schedules covered is opioids, benzodiazepines; check timing is at initiation and periodically (about every 3 months) for chronic therapy; additional checks for dose increases and co-prescribing; recheck interval days is 90, recorded from its source on 2026-08-15.

- **jurisdiction:** Washington _(verified: appears in the quote below)_
- **mandate status:** mandatory _(verified: appears in the quote below)_
- **drug schedules covered:** opioids, benzodiazepines
- **check timing:** at initiation and periodically (about every 3 months) for chronic therapy; additional checks for dose increases and co-prescribing _(verified: appears in the quote below)_
- **recheck interval days:** 90

## What the source says

> Washington: Mandatory PDMP checks for opioids and benzodiazepines at initiation and periodically (about every 3 months) for chronic therapy; additional checks for dose increases and co-prescribing.

## Source

- https://pharmacyfreak.com/pdmp-prescription-drug-monitoring-program-you-are-legally-required-to-check-the-database-but-when-the-state-by-state-rules-you-must-know/

Last verified: 2026-08-15. Review by: 2027-02-11.
Part of [PDMP Mandatory Prescriber Check Requirements by State](https://referencesource.org/pdmp-mandatory-check-requirements/).